Acoustic lens for marine seismic data multiple reflection noise reduction
This patent describes an apparatus for use in gathering seismic data in an area covered by a body of water having a surface, comprising: a seismic vessel; a seismic source towed by the seismic vessel for generating in the body of water an acoustic wave which will penetrate to and be reflected from at least one reflective horizon located below the body of water; a streamer towed by the seismic vessel in the body of water below its surface, including at least one hydrophone for detecting the acoustic wave reflected from at least one reflective horizon; a first gas dispensing tube and a second gas dispensing tube disposed in the water adjacent the vessel, the tubes each having a side wall and a plurality of perforations through the side wall for permitting gas bubbles to escape into the water; a first paravane attached to the first tube; a second paravane attached to the second tube; and control means connected to the first paravane and to the second paravane for controlling the position of the paravanes relative to the streamer.
- Assignee:
- Exxon Production Research Co., Houston, TX
- Patent Number(s):
- US 4624302
- OSTI ID:
- 7230481
- Resource Relation:
- Patent File Date: Filed date 24 Oct 1983
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
03 NATURAL GAS
58 GEOSCIENCES
NATURAL GAS DEPOSITS
MARINE SURVEYS
SEISMIC SURVEYS
PETROLEUM DEPOSITS
DATA ACQUISITION SYSTEMS
BUBBLES
DISTANCE
NOISE
REFLECTION
REFRACTION
SEISMIC DETECTORS
SEISMIC SOURCES
SEISMIC WAVES
SHIPS
GEOLOGIC DEPOSITS
GEOPHYSICAL SURVEYS
MEASURING INSTRUMENTS
MINERAL RESOURCES
RESOURCES
SEISMIC ARRAYS
SURVEYS
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& Exploration
030200 - Natural Gas- Reserves
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580203 - Geophysics- Geophysical Survey Methods- (1980-1989)